body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    background-color: #f4f4f4;
}
header {
    background-color: #003b7a;
    color: #ffffff;
    padding: 10px 30px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
header .logo {
    display: flex;
    align-items: center;
    gap: 15px;
}
header .logo img {
    height: 52px;
}
header .logo-text {
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 1px;
}
header .logo-text strong {
    display: block;
    font-size: 18px;
}
header .system-title {
    text-align: right;
    font-size: 14px;
}
header .system-title strong {
    display: block;
    font-size: 16px;
}
.layout {
    display: flex;
    max-width: 1300px;
    margin: 0 auto;
    padding: 20px;
    box-sizing: border-box;
    gap: 20px;
}
.sidebar {
    width: 260px;
    background-color: #ffffff;
    border-radius: 10px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.1);
    padding: 15px 20px;
    box-sizing: border-box;
}
.sidebar h2 {
    font-size: 16px;
    margin-top: 0;
    margin-bottom: 10px;
    color: #003b7a;
}
.sidebar small {
    display: block;
    margin-bottom: 15px;
    color: #777;
}
.sidebar ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
.sidebar li {
    margin-bottom: 8px;
}
.sidebar a {
    text-decoration: none;
    color: #003b7a;
    font-size: 14px;
}
.sidebar a:hover {
    text-decoration: underline;
}
.content {
    flex: 1;
    background-color: #ffffff;
    border-radius: 10px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.1);
    padding: 20px 25px;
    box-sizing: border-box;
    overflow-x: auto;
}
.content h1 {
    margin-top: 0;
    font-size: 20px;
    color: #003b7a;
}
.content p {
    font-size: 13px;
    color: #555;
}
table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 15px;
    font-size: 12px;
}
table thead {
    background-color: #003b7a;
    color: #ffffff;
}
table th, table td {
    border: 1px solid #ddd;
    padding: 6px 5px;
    text-align: left;
}
table th {
    font-weight: bold;
}
table tbody tr:nth-child(even) {
    background-color: #f9f9f9;
}
footer {
    max-width: 1300px;
    margin: 10px auto 20px auto;
    font-size: 11px;
    color: #555;
    text-align: right;
    padding: 0 20px;
    box-sizing: border-box;
}
footer span {
    margin-left: 15px;
}
@media (max-width: 900px) {
    .layout {
        flex-direction: column;
    }
    .sidebar {
        width: 100%;
    }
}